Beispiel #1
0
void run() {
  typedef typename Algo::Graph Graph;

  Algo algo;
  Graph graph;

  algo.readGraph(graph, filename, transposeGraphName);

  Galois::preAlloc(numThreads + (2*graph.size() * sizeof(typename Graph::node_data_type)) / Galois::Runtime::MM::hugePageSize);
  Galois::reportPageAlloc("MeminfoPre");

  Galois::StatTimer T;
  auto eamp = -amp;///tolerance;
  std::cout << "Running " << algo.name() << " version\n";
  std::cout << "tolerance: " << tolerance << "\n";
  std::cout << "effective amp: " << eamp << "\n";
  T.start();
  Galois::do_all_local(graph, [&graph] (typename Graph::GraphNode n) { graph.getData(n).init(); });
  algo(graph, tolerance, eamp);
  T.stop();
  
  Galois::reportPageAlloc("MeminfoPost");

  if (!skipVerify) {
    algo.verify(graph, tolerance);
    printTop(graph, 10, algo.name().c_str(), numThreads);
  }
}
int main(void) {
	FileParser* fp = new FileParser();
	DetQuadProblem * dqp = fp->parseDetModel("benchmark/FTSE.txt",
			"benchmark/SIMPLE_FE.txt");
	LinearProblem lp = dqp->getSimpleLinearProblem();

#ifdef DEBUG
	dqp->print();
	lp.print();
#endif

	Algo * algo = new SimulatedAnnealing();
	Solver * s = new LpsolveAdaptator();

	Solution sol = algo->solve(*dqp, s);

	/*Solution sol = s->getAdmissibleSolution(&lp);
	 std::cout << "Risk = "<< dqp->objectiveFunction(sol) << " : "
	 << sol.toString() << std::endl;
	 sol = lp.getNeighbour(sol, 1);
	 lp = dqp->getFixedLP(sol);
	 sol = s->getAdmissibleSolution(&lp);
	 std::cout << "Risk = "<< dqp->objectiveFunction(sol) << " : "
	 << sol.toString() << std::endl;
	 sol = lp.getNeighbour(sol, 1);
	 lp = dqp->getFixedLP(sol);
	 sol = s->getAdmissibleSolution(&lp);
	 std::cout << "Risk = "<< dqp->objectiveFunction(sol) << " : "
	 << sol.toString() << std::endl;*/


	return EXIT_SUCCESS;
}
void run() {
  typedef typename Algo::Graph Graph;
  typedef typename Graph::GraphNode GNode;

  Algo algo;
  Graph graph;
  GNode source;

  initialize(algo, graph, source);

  Galois::preAlloc(numThreads + (3*graph.size() * sizeof(typename Graph::node_data_type)) / Galois::Runtime::MM::pageSize);
  Galois::reportPageAlloc("MeminfoPre");

  Galois::StatTimer T;
  std::cout << "Running " << algo.name() << " version\n";
  T.start();
  Galois::do_all_local(graph, typename Algo::Initialize(graph));
  algo(graph, source);
  T.stop();
  
  Galois::reportPageAlloc("MeminfoPost");

  if (!skipVerify) {
    int count = 0;
    for (typename Graph::iterator ii = graph.begin(), ei = graph.end(); ii != ei && count < 10; ++ii, ++count) {
      std::cout << count << ": "
        << std::setiosflags(std::ios::fixed) << std::setprecision(6) << graph.getData(*ii).dependencies
        << "\n";
    }
  }
}
Beispiel #4
0
void runPPR() {
  typedef typename Algo::Graph Graph;

  Algo algo;
  Graph graph;

  algo.readGraph(graph, filename, transposeGraphName);

  std::cout << "Read " << std::distance(graph.begin(), graph.end()) << " Nodes\n";

  Galois::preAlloc(numThreads + (graph.size() * sizeof(typename Graph::node_data_type)) / Galois::Runtime::MM::hugePageSize);
  Galois::reportPageAlloc("MeminfoPre");

  unsigned numSeeds = 2;

  Galois::StatTimer Tt;
  Tt.start();
  auto seeds = findPPRSeeds(graph, numSeeds);
  Tt.stop();
  std::cout << "Find " << numSeeds << " seeds (found " << seeds.size() << ") in " << Tt.get() << "ms\n";

  std::map<typename Graph::GraphNode, std::deque<unsigned> > clusters;

  unsigned counter = 0;
  for (auto seed : seeds) {

    Galois::StatTimer T1, T2, T3;
    std::cout << "Running " << algo.name() << " version\n";
    T1.start();
    Galois::do_all_local(graph, [&graph] (typename Graph::GraphNode n) { graph.getData(n).init(); });
    T1.stop();
    T2.start();
    algo(graph, seed);
    T2.stop();
    T3.start();
    auto c = algo.cluster_from_sweep(graph);
    T3.stop();
    std::cout << T1.get() << " " << T2.get() << " " << T3.get() << "\n";

    std::cout << seed << " : " << c.size() << "\n";
    // for (auto n : c)
    //   std::cout << n << " ";
    // std::cout << "\n";

    for (auto n : c)
      clusters[n].push_back(counter);
    ++counter;

    Galois::reportPageAlloc("MeminfoPost");
  }

  for (auto np : clusters) {
    std::cout << np.first << ": ";
    for (auto n : np.second)
      std::cout << n << " ";
    std::cout << "\n";
  }
}
Beispiel #5
0
    bool update(Algo& algo, const F &callbacks)
    {
      callbacks.at_begin_bundle_adjustment_iteration();

      auto save_container = bundle.clone_opt_container();
      rms1 = algo.get_erreur();
//       double C = 0;
      algo.compute(bundle,lambda,is_better);
      rms2 = algo.compute_erreur(bundle);

//       double& A = rms1;
//       double& B = rms2;
// 
//       double rho = (B-A) / (C-A);
//       
//       std::cout << "\n A : " << rms1 << std::endl;
//       std::cout << " B : " << rms2 << std::endl;
//       std::cout << " C : " << C << std::endl;
//       std::cout << " ared : " << (B-A) << std::endl;
//       std::cout << " pred : " << (C-A) << std::endl;
//       std::cout << color.red() << " rho = " << rho << std::endl << color.reset() << std::endl;
      double nb_obs = bundle.nb_obs();
      if(rms2 > rms1)
      {
        algo.restore_erreur();
        bundle.restore_container(save_container);
        is_better = false;
        callbacks.at_end_bundle_adjustment_iteration(*this);
        lambda *= 10.0;
        if (lambda > 1e30) return false;
      }
      else
      {
        is_better = true;
        callbacks.at_end_bundle_adjustment_iteration(*this);
        if (stop(nb_obs))
        {
          rms1 = rms2;
          return false;
        }
        else
          lambda = std::max(min_lambda,lambda / 10.0);
        rms1 = rms2;
      }
      return true;
    }
Beispiel #6
0
 static BOOST_FORCEINLINE
 typename parallel::util::detail::algorithm_result<ExPolicy>::type
 parallel(Algo const& algo, ExPolicy const& policy, Args const&... args)
 {
     using hpx::traits::segmented_local_iterator_traits;
     algo.call(policy, boost::mpl::false_(),
             segmented_local_iterator_traits<Args>::local(args)...
         );
 }
Beispiel #7
0
 static BOOST_FORCEINLINE R parallel(Algo const& algo,
     ExPolicy const& policy, Args const&... args)
 {
     using hpx::traits::segmented_local_iterator_traits;
     return
         detail::algorithm_result_helper<R>::call(
             algo.call(policy, boost::mpl::false_(),
                 segmented_local_iterator_traits<Args>::local(args)...
             )
         );
 }
void initialize(Algo& algo,
    typename Algo::Graph& graph,
    typename Algo::Graph::GraphNode& source) {

  algo.readGraph(graph);
  std::cout << "Read " << graph.size() << " nodes\n";

  if (startNode >= graph.size()) {
    std::cerr << "failed to set source: " << startNode << "\n";
    assert(0);
    abort();
  }
  
  typename Algo::Graph::iterator it = graph.begin();
  std::advance(it, startNode);
  source = *it;
}